# SDR UIEA2022040900272

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2022
- Submitted: May 3, 2022
- Operation: Air carrier
- Aircraft: [N473MC](https://openairdocs.org/aircraft/N473MC), registered now
- Make and model: Boeing 747
- Aircraft serial: 27174
- Aircraft time: 111,020 hours, 19,942 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022040900272

## Discrepancy

LH BS 1480 LONGERON WEB SPLICE AREA CRACK WAS FOUND AT FASTENER HOLE #16 AT WEB PANEL.(<P>LH BS 1480 LONGERON WEB SPLICE AREA FASTENER HOLE #16 CRACKED HOLE REPAIRED AS PER SB 747-53A-2390 REV 1. #16 FASTENER HOLE OVERSIZE ( 0.4682 ) REPAIRED IAW SB 747-53A2390 REV 1 P.54.</P>)

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